| 1 | //===- unittests/AST/ProfilingTest.cpp --- Tests for Profiling ------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "clang/AST/ASTContext.h" |
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| 10 | #include "clang/ASTMatchers/ASTMatchFinder.h" |
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| 11 | #include "clang/ASTMatchers/ASTMatchers.h" |
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| 12 | #include "clang/Tooling/Tooling.h" |
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| 13 | #include "gtest/gtest.h" |
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| 14 | #include <utility> |
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| 15 | |
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| 16 | namespace clang { |
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| 17 | namespace { |
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| 18 | using namespace ast_matchers; |
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| 19 | |
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| 20 | static auto getClassTemplateRedecls() { |
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| 21 | std::string Code = R"cpp( |
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| 22 | template <class> struct A; |
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| 23 | template <class> struct A; |
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| 24 | template <class> struct A; |
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| 25 | )cpp" ; |
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| 26 | auto AST = tooling::buildASTFromCode(Code); |
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| 27 | ASTContext &Ctx = AST->getASTContext(); |
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| 28 | |
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| 29 | auto MatchResults = match(Matcher: classTemplateDecl().bind(ID: "id" ), Context&: Ctx); |
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| 30 | SmallVector<ClassTemplateDecl *, 3> Res; |
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| 31 | for (BoundNodes &N : MatchResults) { |
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| 32 | if (auto *CTD = const_cast<ClassTemplateDecl *>( |
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| 33 | N.getNodeAs<ClassTemplateDecl>(ID: "id" ))) |
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| 34 | Res.push_back(Elt: CTD); |
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| 35 | } |
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| 36 | assert(Res.size() == 3); |
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| 37 | #ifndef NDEBUG |
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| 38 | for (auto &&I : Res) |
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| 39 | assert(I->getCanonicalDecl() == Res[0]); |
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| 40 | #endif |
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| 41 | return std::make_tuple(args: std::move(AST), args&: Res[1], args&: Res[2]); |
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| 42 | } |
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| 43 | |
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| 44 | template <class T> static void testTypeNode(const T *T1, const T *T2) { |
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| 45 | { |
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| 46 | llvm::FoldingSetNodeID ID1, ID2; |
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| 47 | T1->Profile(ID1); |
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| 48 | T2->Profile(ID2); |
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| 49 | ASSERT_NE(ID1, ID2); |
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| 50 | } |
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| 51 | auto *CT1 = cast<T>(T1->getCanonicalTypeInternal()); |
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| 52 | auto *CT2 = cast<T>(T2->getCanonicalTypeInternal()); |
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| 53 | { |
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| 54 | llvm::FoldingSetNodeID ID1, ID2; |
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| 55 | CT1->Profile(ID1); |
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| 56 | CT2->Profile(ID2); |
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| 57 | ASSERT_EQ(ID1, ID2); |
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| 58 | } |
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| 59 | } |
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| 60 | |
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| 61 | TEST(Profiling, DeducedTemplateSpecializationType_Name) { |
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| 62 | auto [AST, CTD1, CTD2] = getClassTemplateRedecls(); |
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| 63 | ASTContext &Ctx = AST->getASTContext(); |
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| 64 | |
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| 65 | auto *T1 = cast<DeducedTemplateSpecializationType>( |
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| 66 | Val: Ctx.getDeducedTemplateSpecializationType(Template: TemplateName(CTD1), DeducedType: QualType(), |
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| 67 | IsDependent: false)); |
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| 68 | auto *T2 = cast<DeducedTemplateSpecializationType>( |
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| 69 | Val: Ctx.getDeducedTemplateSpecializationType(Template: TemplateName(CTD2), DeducedType: QualType(), |
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| 70 | IsDependent: false)); |
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| 71 | testTypeNode(T1, T2); |
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| 72 | } |
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| 73 | |
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| 74 | } // namespace |
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| 75 | } // namespace clang |
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| 76 | |
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